Permatex Anaerobic Gasket Maker 300 ml Red vs Permatex Ultra Black RTV Silicone Gasket Maker 3 oz Tube (12-pack)

Overall winner: Permatex Anaerobic Gasket Maker 300 ml Red

Permatex Anaerobic Gasket Maker 300 ml Red

Permatex Anaerobic Gasket Maker 300 ml Red

Permatex • ★ 3.9/5 • Mid-Range

Anaerobic gasket maker that cures to a solvent-resistant seal and fills gaps up to .015". Useful for on-the-spot repairs when a conventional gasket is unavailable. One customer notes strong performance on rear main seals and water jackets

Pros

  • solvent-resistant seal
  • fills gaps up to 0.015 inches
  • easy disassembly after service
  • removes old gasket material quickly

Cons

  • mixed feedback on tube durability
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Permatex Ultra Black RTV Silicone Gasket Maker 3 oz Tube (12-pack)

Permatex Ultra Black RTV Silicone Gasket Maker 3 oz Tube (12-pack)

Permatex • ★ 3.7/5 • Mid-Range

Oil-resistant RTV gasket maker with fast-curing formula and low odor. Maintains flexibility and uses a patented adhesion system for drivetrain applications

Pros

  • fast-curing formula
  • low odor and non-corrosive
  • retains high flexibility
  • oil resistance through adhesion system

Cons

  • intermittent high temp range mentioned
  • customer insights mention waterproofing use and waste reduction
  • pack contains multiple tubes
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Head-to-Head

CriteriaWinner
Price Permatex
Durability Permatex
Versatility Permatex
User Reviews Permatex